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PriorLux
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Figure 3
This procedure needs to be carried out for every objective, but unless deliberately adjusted
should not need checking again frequently. If the quality of the phase contrast image is
poor then check that the condenser is properly focused and centred and then ensure that the
rings are correctly aligned.
10. Dark Ground
The microscope may be used for dark ground observations if the optional phase contrast
condenser has been purchased. To use dark ground simply move the condenser position
from brightfield (O) to dark ground (D) by rotating the condenser turret.